Electronic Theses and Dissertation

Tugas Akhir Sarjana

Studi Kelayakan Pondasi Telapak Dan Alternatif Perencanaan Pondasi Spun Pile (Studi Kasus Gedung Control Room PT. Perta Arun Gas)
Al-Abraar Muazzin
1604101010091
Program Studi Sarjana Teknik Sipil
Jurusan Teknik Sipil-Fakultas Teknik
Universitas Syiah Kuala

ABSTRAK

Gedung Control Room milik PT. Perta Arun Gas merupakan sebuah gedung yang berfungsi untuk memantau dan juga mengontrol peralatan yang terdapat di lapangan. Perencanaan penambahan lantai pada gedung ini mengakibatkan penambahan beban sehingga dibutuhkan perhitungan pada pondasi eksisting untuk mengetahui kelayakannya dan alternatif pondasi yang cocok untuk menyalurkan beban struktur atas bangunan. Penelitian ini bertujuan untuk menganalisis kelayakan pondasi telapak berdasarkan daya dukung metode Meyerhoff (1956) dan penurunan metode Meyerhoff (1974) dan merencanakan alternatif pondasi spun pile dengan tiang tunggal dari perhitungan daya dukung metode Meyerhoff (1956), Luciano Decourt (1982), Thomlinson (1977) dan penurunan metode Vesic (1977) serta kontrol lateral. Data yang digunakan dalam penelitian ini merupakan data sekunder berupa data SPT yang diperoleh dari Laboratorium Penelitian Terpadu Universitas Syiah Kuala. Hasil perhitungan daya dukung pondasi telapak A1 dimensi 150 cm x 150 cm sebesar 422,33 kN/m2 dengan faktor keamanan sebesar 2,04, pondasi telapak C4 dimensi 120 cm x 120 cm dengan daya dukung sebesar 296,45 kN/m2 dengan faktor aman sebesar 1,45 dan pondasi E5 dimensi 100 cm x 100 cm dengan daya dukung sebesar 229,88,79 kN/m2 dengan faktor keamanan 9,49. Penurunan pada pondasi A1 sebesar 2,82 cm, pondasi C4 sebesar 2,49 cm dan pondasi E5 sebesar 0,27 cm. Berdasarkan hasil perhitungan diperoleh alternatif pondasi tiang tunggal spun pile berdiameter 50 cm dengan kedalaman 26 m dan memiliki daya dukung izin 137,39 ton dengan penurunan metode Vesic (1977) sebesar 0,91 cm. Dari hasil perhitungan dapat disimpulkan bahwa alternatif pondasi berada pada kedalaman tanah keras dan kuat menahan beban bangunan.

Kata Kunci : Control Room, Pondasi Spun Pile, Pondasi Telapak, Daya Dukung, Penurunan.

Undergraduate Final Project Feasibility Study of Footing Foundation and Alternative Planning of Spun Pile Foundation (Case Study of Control Room Building PT. Perta Arun Gas) Al-Abraar Muazzin 1604101010091 Undergraduate Program of Civil Engineering Civil Engineering Department of Engineering Faculty University of Syiah Kuala ABSTRACT Control Room building owned by PT. Perta Arun Gas is a building that functions to unite and control the equipment in the field. Planning for additional floors in this building causes additional loads so that calculations are needed on the existing foundation to determine its feasibility and suitable alternative foundations to distribute the load on the structure of the building. The purpose of this study is to analyze the feasibility of the footing foundation based on the bearing capacity of the Meyerhoff method (1956) and the settlement of the Meyerhoff method (1974) and to plan alternative spun pile foundations with single piles from the calculation of the bearing capacity of the Meyerhoff method (1956), Luciano Decourt (1982), Thomlinson ( 1977) and the settlement of the Vesic method (1977) and lateral control. The data used in this study is secondary data in the form of SPT data obtained from the Laboratory of Integrated Research, Syiah Kuala University. The calculation results of the bearing capacity for A1 footing with dimensions of 150 cm x 150 cm are 422,33 kN/m2 with a safety factor of 2,04, C4 footing foundation dimensions of 120 cm x 120 cm with a bearing capacity of 296,45 kN/m2 with a safety factor of 1.45 and E5 foundation dimension of 100 cm x 100 cm with a bearing capacity of 229,88 kN/m2 with a safety factor of 9,49. The settlement on the A1 foundation is 2.82 cm, the C4 foundation is 2.49 cm and the E5 foundation is 0.27 cm. Based on the calculation results, the alternative single pile spun pile foundation has a diameter of 50 cm with a depth of 26 m and has a bearing capacity of 137,39 tons with the settlement in the Vesic method (1977) of 0,91 cm.From the calculation results it can be concluded that the alternative spun pile is located at a depth of hard soil and is able to withstand the load of the building. Keywords : Control Room, Spun Pile Foundation, Footing Foundation, Bearing Capacity, Settlement.